53523810 ÷ 888 
The aim is to understand the frequency of 888 in 53523810.

Step 1:
5 divided by 888 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 888

On to step 2:
53 divided by 888 is 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Grab the next digit (5) from the dividend, add it to 53, then carry on: 535 / 888

Moving on to step 3:
535 divided by 888 is 0 with a remainder of 535.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 535, we get 535.
Bring next digit (2) of the dividend behind the 535 and repeat the process: 5352 / 888

Let's proceed to step 4:
888 can be fit into 5352 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 5328 away from 5352, we end up with 24.
Bring next digit (3) of the dividend behind the 24 and repeat the process: 243 / 888

Step 5:
When dividing 243 by 888, we get 0 with a remainder of 243.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
If we subtract 0 from 243, we get 243.
Fetch the next digit (8) from the dividend, attach it to 243 and continue: 2438 / 888

Moving on to step 6:
The number 888 fits into 2438 2 times, leaving a remainder of 662.
Write down 2 as next digit of the result. 
Result so far: 602.0
Subtract 1776 from 2438 to get 662.
Fetch the next digit (1) from the dividend, attach it to 662 and continue: 6621 / 888

Moving on to step 7:
6621 divided by 888 is 7 with a remainder of 405.
The next digit of our result is 7. 
Result so far: 6027.0
Subtracting 6216 from 6621 leaves us with 405.
Grab the next digit (0) from the dividend, add it to 405, then carry on: 4050 / 888

On to step 8:
When dividing 4050 by 888, we get 4 with a remainder of 498.
Write down 4 as next digit of the result. 
Result so far: 60274.0
The remainder is 498 after subtracting 3552 from 4050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

On to step 9:
The number 888 fits into 4980 5 times, leaving a remainder of 540.
Write down 5 as next digit of the result. 
Result so far: 60274.5
Deduct 4440 from 4980 and we're left with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 10:
5400 divided by 888 is 6 with a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 60274.56
Subtracting 5328 from 5400 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 11:
If we divide 720 by 888, we get 0 and a remainder of 720.
Put 0 as the next digit of the answer. 
Result so far: 60274.56
If we take 0 away from 720, we end up with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 12:
888 can be fit into 7200 8 times, resulting in a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 60274.5608
If we take 7104 away from 7200, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 13:
960 divided by 888 is 1 with a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 60274.56081
Subtract 888 from 960 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 14:
888 goes into 720 0 times with a remainder of 720.
Put 0 as the next digit of the answer. 
Result so far: 60274.56081
Deduct 0 from 720 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 15:
888 goes into 7200 8 times with a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 60274.5608108
Deduct 7104 from 7200 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 16:
If we divide 960 by 888, we get 1 and a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 60274.56081081
If we take 888 away from 960, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 60274.56081081, with a leftover of 7.2e-08.